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Standard Test Method for Molybdenum in Water
Automaticky přeložený název:
Standardní zkušební metoda pro molybdenu ve vodě
NORMA vydána dne 1.9.2012
Označení normy: ASTM D3372-12
Poznámka: NEPLATNÁ
Datum vydání normy: 1.9.2012
Kód zboží: NS-23452
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
atomic absorption, molybdenum, water, ICS Number Code 13.060.50 (Examination of water for chemical substances)
Significance and Use | ||||||||||||||||
5.1 Molybdenum can be found in waste that results from chemical cleaning of components in which the metal is alloyed. 5.2 National Pollution Discharge Elimination System (NPDES) permits or other standards, or both, require monitoring pollutants in waste discharged onto the water shed of, or into, navigable waters, and those disposed of in such a manner that eventual contamination of underground water could result. 5.3 This test method affords an accurate and sensitive means of determining compliance with those permits. |
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1. Scope | ||||||||||||||||
1.1 This test method covers the determination of dissolved and total recoverable molybdenum in most waters, wastewaters, and brines by atomic absorption spectroscopy.1.2 This test method is applicable in the range from 1 to 25 μg/L of molybdenum. The range may be extended by dilution of the sample. 1.3 This test method has been used successfully with natural and reagent waters. It is the user's responsibility to ensure the validity of this test method for waters of untested matrices. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are mathematical conversions and may not be exact equivalents; therefore, each system shall be used independently of the other. 1.5 This standard does not
purport to address all of the safety concerns, if any, associated
with its use. It is the responsibility of the user of this standard
to establish appropriate safety and health practices and determine
the applicability of regulatory limitations prior to use.
Standard Practice for Estimation of
Holding Time for Water Samples Containing Organic and Inorganic
Constituents Standard Practice for Determination of
Precision and Bias of Applicable Test Methods of Committee D19 on
Water Standard Practice for Measuring Elements
in Water by Flame Atomic Absorption Spectrophotometry Standard Practices for Sampling Water
from Flowing Process Streams Standard Terminology Relating to Water
(Includes all amendments and changes 2/14/2024). Standard Practice for Writing Quality
Control Specifications for Standard Test Methods for Water
Analysis Standard Guide for Spiking into Aqueous
Samples Standard Specification for Reagent
Water |
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